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# File lib/rubygems/commands/which_command.rb, line 4def initializesuper'which','Find the location of a library file you can require',:search_gems_first=>false,:show_all=>falseadd_option'-a','--[no-]all','show all matching files'do|show_all,options|options[:show_all]=show_allendadd_option'-g','--[no-]gems-first','search gems before non-gems'do|gems_first,options|options[:search_gems_first]=gems_firstendend